* Boston, MA 02111-1307, USA.
*/
+#define _GNU_SOURCE
#include "config.h"
-#include "dbus/dbus-glib-lowlevel.h"
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <droute/droute.h>
#include <gmodule.h>
+#include <glib/gi18n.h>
+#include <atspi/atspi.h>
#include "bridge.h"
#include "event.h"
#include "adaptors.h"
#include "object.h"
+#include "accessible-stateset.h"
#include "accessible-register.h"
#include "accessible-leasing.h"
#include "accessible-cache.h"
-#include "common/spi-dbus.h"
+#include "spi-dbus.h"
/*---------------------------------------------------------------------------*/
-SpiBridge *spi_global_app_data = NULL;
+static DBusHandlerResult
+signal_filter (DBusConnection *bus, DBusMessage *message, void *user_data);
-static const AtkMisc *atk_misc = NULL;
+SpiBridge *spi_global_app_data = NULL;
/*static Display *bridge_display = NULL;*/
/*---------------------------------------------------------------------------*/
-/*
- * Gets the IOR from the XDisplay.
- * Not currently used in D-Bus version, but something similar
- * may be employed in the future for accessing the registry daemon
- * bus name.
- */
-
-static DBusConnection *
-spi_atk_bridge_get_bus (void)
-{
- Atom AT_SPI_BUS;
- Atom actual_type;
- Display *bridge_display;
- int actual_format;
- unsigned char *data = NULL;
- unsigned long nitems;
- unsigned long leftover;
-
- DBusConnection *bus = NULL;
- DBusError error;
-
- bridge_display = XOpenDisplay (spi_display_name ());
- if (!bridge_display)
- {
- g_warning ("AT_SPI: Could not get the display\n");
- return NULL;
- }
-
- AT_SPI_BUS = XInternAtom (bridge_display, "AT_SPI_BUS", False);
- XGetWindowProperty (bridge_display,
- XDefaultRootWindow (bridge_display),
- AT_SPI_BUS, 0L,
- (long) BUFSIZ, False,
- (Atom) 31, &actual_type, &actual_format,
- &nitems, &leftover, &data);
-
- dbus_error_init (&error);
-
- if (data == NULL)
- {
- g_warning
- ("AT-SPI: Accessibility bus not found - Using session bus.\n");
- bus = dbus_bus_get (DBUS_BUS_SESSION, &error);
- if (!bus)
- {
- g_warning ("AT-SPI: Couldn't connect to bus: %s\n", error.message);
- return NULL;
- }
- }
- else
- {
- bus = dbus_connection_open (data, &error);
- if (!bus)
- {
- g_warning ("AT-SPI: Couldn't connect to bus: %s\n", error.message);
- return NULL;
- }
- else
- {
- if (!dbus_bus_register (bus, &error))
- {
- g_warning ("AT-SPI: Couldn't register with bus: %s\n", error.message);
- return NULL;
- }
- }
- }
-
- return bus;
-}
-
static void
set_reply (DBusPendingCall *pending, void *user_data)
{
void **replyptr = (void **)user_data;
*replyptr = dbus_pending_call_steal_reply (pending);
+ dbus_pending_call_unref (pending);
}
/*---------------------------------------------------------------------------*/
gchar **data;
GList *new_list;
+ spi_atk_add_client (bus_name);
evdata = (event_data *) g_malloc (sizeof (*evdata));
if (!evdata)
return;
spi_global_app_data->events = new_list;
}
+static GSList *clients = NULL;
+
static void
get_registered_event_listeners (SpiBridge *app)
{
DBusMessageIter iter, iter_array, iter_struct;
message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
- SPI_DBUS_PATH_REGISTRY,
- SPI_DBUS_INTERFACE_REGISTRY,
+ ATSPI_DBUS_PATH_REGISTRY,
+ ATSPI_DBUS_INTERFACE_REGISTRY,
"GetRegisteredEvents");
if (!message)
return;
reply = dbus_connection_send_with_reply_and_block (app->bus, message, 5000, NULL);
dbus_message_unref (message);
if (!reply)
- return;
+ {
+ spi_global_app_data->events_initialized = TRUE;
+ return;
+ }
if (strcmp (dbus_message_get_signature (reply), "a(ss)") != 0)
{
- /* TODO: Add a warning when it's okay to add strings */
+ g_warning ("atk-bridge: GetRegisteredEvents returned message with unknown signature");
dbus_message_unref (reply);
+ spi_global_app_data->events_initialized = TRUE;
return;
}
dbus_message_iter_init (reply, &iter);
dbus_message_iter_recurse (&iter, &iter_array);
- /* TODO: This is bad. Need to determine that the array is non-empty,
- so that we don't initially read a value rom it in that case, but using
- a deprecated function. */
- if (dbus_message_iter_get_array_len (&iter_array) > 0) do
+ while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
{
char *bus_name, *event;
dbus_message_iter_recurse (&iter_array, &iter_struct);
dbus_message_iter_next (&iter_struct);
dbus_message_iter_get_basic (&iter_struct, &event);
add_event (bus_name, event);
+ dbus_message_iter_next (&iter_array);
}
- while (dbus_message_iter_next (&iter_array));
dbus_message_unref (reply);
+
+ if (!clients)
+ spi_atk_deregister_event_listeners ();
+ spi_global_app_data->events_initialized = TRUE;
}
static void
SpiBridge *app = user_data;
DBusMessage *message;
- reply = dbus_pending_call_steal_reply (pending);
+ reply = dbus_pending_call_steal_reply (pending);
+ dbus_pending_call_unref (pending);
if (reply)
{
gchar *app_name, *obj_path;
/* These will be overridden when we get a reply, but in practice these
defaults should always be correct */
- app->desktop_name = SPI_DBUS_NAME_REGISTRY;
- app->desktop_path = SPI_DBUS_PATH_ROOT;
+ app->desktop_name = ATSPI_DBUS_NAME_REGISTRY;
+ app->desktop_path = ATSPI_DBUS_PATH_ROOT;
message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
- SPI_DBUS_PATH_ROOT,
- SPI_DBUS_INTERFACE_SOCKET,
+ ATSPI_DBUS_PATH_ROOT,
+ ATSPI_DBUS_INTERFACE_SOCKET,
"Embed");
dbus_message_iter_init_append (message, &iter);
spi_object_append_reference (&iter, app->root);
- if (!dbus_connection_send_with_reply (app->bus, message, &pending, -1))
+ if (!dbus_connection_send_with_reply (app->bus, message, &pending, -1)
+ || !pending)
{
return FALSE;
}
if (message)
dbus_message_unref (message);
-/* could this be better, we accept some amount of race in getting the temp name*/
-/* make sure the directory exists */
-mkdir("/tmp/at-spi2/", S_IRWXU);
-app->app_bus_addr = g_malloc(max_addr_length * sizeof(char));
-sprintf(app->app_bus_addr, "unix:path=/tmp/at-spi2/socket-%d-%d", getpid(),
-rand());
+ /* could this be better, we accept some amount of race in getting the temp name*/
+ /* make sure the directory exists */
+ mkdir ("/tmp/at-spi2/", S_IRWXU|S_IRWXG|S_IRWXO|S_ISVTX);
+ chmod ("/tmp/at-spi2/", S_IRWXU|S_IRWXG|S_IRWXO|S_ISVTX);
+ app->app_bus_addr = g_malloc(max_addr_length * sizeof(char));
+#ifndef DISABLE_P2P
+ sprintf (app->app_bus_addr, "unix:path=/tmp/at-spi2/socket-%d-%d", getpid(),
+ rand());
+#else
+ app->app_bus_addr [0] = '\0';
+#endif
return TRUE;
}
dbus_error_init (&error);
message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
- SPI_DBUS_PATH_REGISTRY,
- SPI_DBUS_INTERFACE_REGISTRY,
+ ATSPI_DBUS_PATH_REGISTRY,
+ ATSPI_DBUS_INTERFACE_REGISTRY,
"DeregisterApplication");
dbus_message_set_no_reply (message, TRUE);
/*---------------------------------------------------------------------------*/
-static void
-exit_func (void)
-{
- if (!spi_global_app_data)
- {
- return;
- }
-
- spi_atk_tidy_windows ();
- spi_atk_deregister_event_listeners ();
- deregister_application (spi_global_app_data);
-
- g_free (spi_global_app_data);
- spi_global_app_data = NULL;
-
- /* Not currently creating an XDisplay */
-#if 0
- if (bridge_display)
- XCloseDisplay (bridge_display);
-#endif
-}
-
/*---------------------------------------------------------------------------*/
static AtkPlugClass *plug_class;
DBusMessageIter iter, iter_array;
AtkStateSet *set;
+ set = atk_state_set_new ();
+
if (!socket->embedded_plug_id)
- return NULL;
+ return set;
child_name = g_strdup (socket->embedded_plug_id);
if (!child_name)
- return NULL;
+ return set;
child_path = g_utf8_strchr (child_name + 1, -1, ':');
if (!child_path)
{
g_free (child_name);
- return NULL;
+ return set;
}
*(child_path++) = '\0';
- message = dbus_message_new_method_call (child_name, child_path, SPI_DBUS_INTERFACE_ACCESSIBLE, "GetState");
+ message = dbus_message_new_method_call (child_name, child_path, ATSPI_DBUS_INTERFACE_ACCESSIBLE, "GetState");
g_free (child_name);
reply = dbus_connection_send_with_reply_and_block (spi_global_app_data->bus, message, 1, NULL);
dbus_message_unref (message);
if (reply == NULL)
- return NULL;
+ return set;
if (strcmp (dbus_message_get_signature (reply), "au") != 0)
{
dbus_message_unref (reply);
- return NULL;
+ return set;
}
- set = atk_state_set_new ();
- if (!set)
- return NULL;
+
dbus_message_iter_init (reply, &iter);
dbus_message_iter_recurse (&iter, &iter_array);
do
{
DBusMessage *message;
*(plug_path++) = '\0';
- message = dbus_message_new_method_call (plug_name, plug_path, SPI_DBUS_INTERFACE_SOCKET, "Embedded");
+ message = dbus_message_new_method_call (plug_name, plug_path, ATSPI_DBUS_INTERFACE_SOCKET, "Embedded");
dbus_message_append_args (message, DBUS_TYPE_STRING, &path, DBUS_TYPE_INVALID);
dbus_connection_send (spi_global_app_data->bus, message, NULL);
}
socket_class->embed = socket_embed_hook;
}
+static uint
+get_ancestral_uid (uint pid)
+{
+ FILE *fp;
+ char buf [80];
+ int ppid = 0;
+ int uid = 0;
+ gboolean got_ppid = 0;
+ gboolean got_uid = 0;
+
+ sprintf (buf, "/proc/%d/status", pid);
+ fp = fopen (buf, "r");
+ if (!fp)
+ return 0;
+ while ((!got_ppid || !got_uid) && fgets (buf, sizeof (buf), fp))
+ {
+ if (sscanf (buf, "PPid:\t%d", &ppid) == 1)
+ got_ppid = TRUE;
+ else if (sscanf (buf, "Uid:\t%d", &uid) == 1)
+ got_uid = TRUE;
+ }
+ fclose (fp);
+
+ if (!got_ppid || !got_uid)
+ return 0;
+ if (uid != 0)
+ return uid;
+ if (ppid == 0 || ppid == 1)
+ return 0;
+ return get_ancestral_uid (ppid);
+}
+
+static dbus_bool_t
+user_check (DBusConnection *bus, unsigned long uid)
+{
+ if (uid == getuid () || uid == geteuid ())
+ return TRUE;
+ if (getuid () == 0)
+ return get_ancestral_uid (getpid ()) == uid;
+ return FALSE;
+}
+
static void
new_connection_cb (DBusServer *server, DBusConnection *con, void *data)
{
GList *new_list;
+ dbus_connection_set_unix_user_function (con, user_check, NULL, NULL);
dbus_connection_ref(con);
- dbus_connection_setup_with_g_main(con, NULL);
+ atspi_dbus_connection_setup_with_g_main(con, NULL);
droute_intercept_dbus (con);
droute_context_register (spi_global_app_data->droute, con);
- new_list = g_list_append (spi_global_app_data->direct_connections, con);
- if (new_list)
- spi_global_app_data->direct_connections = new_list;
+ spi_global_app_data->direct_connections = g_list_append (spi_global_app_data->direct_connections, con);
}
static int
setup_bus (void)
{
+#ifndef DISABLE_P2P
DBusServer *server;
DBusError err;
dbus_error_init(&err);
server = dbus_server_listen(spi_global_app_data->app_bus_addr, &err);
-
- /* is there a better way to handle this */
if (server == NULL)
+ {
+ g_warning (_("atk-bridge: Couldn't listen on dbus server: %s"), err.message);
+ dbus_error_init (&err);
+ spi_global_app_data->app_bus_addr [0] = '\0';
+ g_main_context_unref (spi_global_app_data->main_context);
+ spi_global_app_data->main_context = NULL;
return -1;
+ }
- dbus_server_setup_with_g_main(server, NULL);
+ atspi_dbus_server_setup_with_g_main(server, NULL);
dbus_server_set_new_connection_function(server, new_connection_cb, NULL, NULL);
spi_global_app_data->server = server;
+#endif
return 0;
}
list = list->next;
}
}
+
+ g_strfreev (remove_data);
}
static void
if (dbus_message_get_type (message) != DBUS_MESSAGE_TYPE_SIGNAL)
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
- if (!strcmp (interface, SPI_DBUS_INTERFACE_REGISTRY))
+ if (!strcmp (interface, ATSPI_DBUS_INTERFACE_REGISTRY))
{
result = DBUS_HANDLER_RESULT_HANDLED;
if (!strcmp (member, "EventListenerRegistered"))
else
result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
+
+ if (!g_strcmp0(interface, DBUS_INTERFACE_DBUS) &&
+ !g_strcmp0(member, "NameOwnerChanged"))
+ {
+ char *name, *old, *new;
+ result = DBUS_HANDLER_RESULT_HANDLED;
+ if (dbus_message_get_args (message, NULL,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_STRING, &old,
+ DBUS_TYPE_STRING, &new,
+ DBUS_TYPE_INVALID))
+ {
+ if (*old != '\0' && *new == '\0')
+ spi_atk_remove_client (old);
+ }
+ }
+
return result;
}
g_option_context_set_ignore_unknown_options (opt, TRUE);
if (!g_option_context_parse (opt, argc, argv, &err))
g_warning ("AT-SPI Option parsing failed: %s\n", err->message);
+ g_option_context_free (opt);
/* Allocate global data and do ATK initializations */
spi_global_app_data = g_new0 (SpiBridge, 1);
- atk_misc = atk_misc_get_instance ();
spi_global_app_data->root = g_object_ref (root);
/* Set up D-Bus connection and register bus name */
dbus_error_init (&error);
- spi_global_app_data->bus = spi_atk_bridge_get_bus ();
+ spi_global_app_data->bus = atspi_get_a11y_bus ();
if (!spi_global_app_data->bus)
{
g_free (spi_global_app_data);
spi_global_app_data->main_context = g_main_context_new ();
- dbus_connection_setup_with_g_main (spi_global_app_data->bus, NULL);
+ atspi_dbus_connection_setup_with_g_main (spi_global_app_data->bus, NULL);
/* Hook our plug-and socket functions */
install_plug_hooks ();
setup_bus();
- g_atexit (exit_func);
-
return 0;
}
void
gnome_accessibility_module_shutdown (void)
{
+ GList *l;
+
+ if (!spi_global_app_data)
+ return;
+
+ spi_atk_tidy_windows ();
spi_atk_deregister_event_listeners ();
- exit_func ();
+
+ deregister_application (spi_global_app_data);
+
+ if (spi_global_app_data->bus)
+ {
+ dbus_connection_remove_filter (spi_global_app_data->bus, signal_filter, NULL);
+ droute_context_unregister (spi_global_app_data->droute, spi_global_app_data->bus);
+ dbus_connection_unref (spi_global_app_data->bus);
+ }
+
+ for (l = spi_global_app_data->direct_connections; l; l = l->next)
+ {
+ droute_context_unregister (spi_global_app_data->droute, l->data);
+ droute_unintercept_dbus (l->data);
+ dbus_connection_unref (l);
+ }
+ g_list_free (spi_global_app_data->direct_connections);
+
+ for (l = clients; l; l = l->next)
+ g_free (l->data);
+ g_list_free (clients);
+ clients = NULL;
+
+ g_object_unref (spi_global_cache);
+ g_object_unref (spi_global_leasing);
+ g_object_unref (spi_global_register);
+
+ if (spi_global_app_data->main_context)
+ g_main_context_unref (spi_global_app_data->main_context);
+
+ droute_free (spi_global_app_data->droute);
+
+ g_free (spi_global_app_data);
+ spi_global_app_data = NULL;
+
+ /* Not currently creating an XDisplay */
+#if 0
+ if (bridge_display)
+ XCloseDisplay (bridge_display);
+#endif
+}
+
+static gchar *name_match_tmpl =
+ "type='signal', interface='org.freedesktop.DBus', member='NameOwnerChanged', arg0='%s'";
+
+void
+spi_atk_add_client (const char *bus_name)
+{
+ GSList *l;
+ gchar *match;
+
+ for (l = clients; l; l = l->next)
+ {
+ if (!g_strcmp0 (l->data, bus_name))
+ return;
+ }
+ if (!clients && spi_global_app_data->events_initialized)
+ spi_atk_register_event_listeners ();
+ clients = g_slist_append (clients, g_strdup (bus_name));
+ match = g_strdup_printf (name_match_tmpl, bus_name);
+ dbus_bus_add_match (spi_global_app_data->bus, match, NULL);
+ g_free (match);
+}
+
+void
+spi_atk_remove_client (const char *bus_name)
+{
+ GSList *l;
+
+ for (l = clients; l; l = l->next)
+ {
+ if (!g_strcmp0 (l->data, bus_name))
+ {
+ gchar *match = g_strdup_printf (name_match_tmpl, l->data);
+ dbus_bus_remove_match (spi_global_app_data->bus, match, NULL);
+ g_free (match);
+ g_free (l->data);
+ clients = g_slist_remove_link (clients, l);
+ if (!clients)
+ spi_atk_deregister_event_listeners ();
+ }
+ }
}
/*END------------------------------------------------------------------------*/
projects / platform / core / uifw / at-spi2-atk.git / blobdiff